Elizabeth F. asks: Is white gold really gold? If it is, how do they make it white when it’s an element?

The purest form of gold is, of course, golden and is referred to as 24 karat gold. Pure gold is much too soft for use in jewelry and can even be dented by simply pressing your fingernail hard against it. Needless to say, daily wear, particularly for things like rings and bracelets, would see such jewelry bent and deformed quite quickly. So the gold must be made more durable by mixing...